Finding the Third Proportional to 868,538 and 1,342,178

Step by Step Solution

1. Step 1: Write the proportion equation
   868,538 : 1,342,178 = 1,342,178 : x
2. Step 2: Convert to fraction form
   868,538/1,342,178 = 1,342,178/x
3. Step 3: Cross multiply
   868,538x = 1,342,178 × 1,342,178
4. Step 4: Simplify right side
   868,538x = 1,801,441,783,684
5. Step 5: Solve for x
   x = 1,801,441,783,684/868,538
6. Step 6: Final answer
   x = 2,074,108.20